Motor.



G. KELLER.

MOTOR.

APPLICATION FILED DEC. 2, 1905. RENEWED MAY 19,1909.

944,441 Patented Dec. 28, 1909.

2 SHEETS-SHEET 1.

W/T/VESSES. INVE imwwwyqf 'aiiiz'ejzfller FIE-L. W

A TTOHNE Y8 citizen of the "Republic of To all whom it may concern? tionto a plurality of eo'rrnmx KELLER, or new Yonx', a- Y.

moron.

- Application filed December 2,

-Be it known that I, GOTTLIEB KELLER, a Switzerland, and a resident ofthe city of New York, borough of'Manhattan, in the county and State ofNew York, have invented a new and Improved Motor, of which the]following is a full, clear, and exact description.

The object of the invention is to provide a new and improved motor orexplosion en.- gine of'the two-cycle type arranged to utilize the motiveagent to the fullest advantage by giving continuous impulses in properrotapistons connected with the main shaft, to insure a steady anduniform running of the engine and hence permit the use of the motor onautomobiles and the like.

The invention consists of novel features and. parts and combinations ofthe same which will be more fully described hereinafter and then pointedout in the claim.

A practical embodiment of the invention is represented in theaccompanying drawngs forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of .the improvement; Fig. 2 is a plan viewof the same, parts being in section; Fi 3 is an enlarged sectional sideelevation of the valve for controlling the admission and exhaust of themotive agent;'Fig. 4 is a sectional plan view of the same, on the line4-4 of Fig. 3; Fig. 5 is a similar view of the same, on the line 5-5 ofFig. 3; Figs. 6 and 7 are similar views, showing the valve plug in aandFig. 8 is a cross secon the line 8-8 of Fig. 3. motor as illustrated inthe drawin s is-preferabl provided with two pairs 0 cylinders A, and A Aand in each of the cylinders is mounted to reciprocate a pistonBconnected by a pitman C shut-off position; tion of the valve,

The improved with a crank arm D on the main drivingshaft E, the crankarms D for the pistons 111 the cylinders A and A being arrangeddiametrically opposite each other, and the crank arms D for the pistonsin the cylinders A and A being likewise arranged diametrically and atright angles to the crank arms D for the pistons of the cylinders A andA; thus the several crank arms stand in quarter positions relative toeach other,

as will be readily understood by reference to- Fig. 1. The motive agentto and from .the

Specification of vLetters Patent. 1905, ser a 'naasasea Renewed May 19,1909. Serial No."496,936.

dcr A or A .and A or Patented-Dec. as, 1909.

pairs of cylinders A, A A A is controlled by valves F, each of whichisprovided with a'rockingconical valve plug F,

provided at 'its stem F? with an arm Goonn'ected by a link G, with abell crank lever G connected with theeccentric rod G of an eccentric Grsecured on the-main shaft E. Thus, by the arrangement described eachvalve plug F is turned in-unison with the movement of the pistons B,"asthe latter are connected with and impart rotary. motion to the mainshaft E. I

Each valve plugF provided with two chambers or compartments F and ,F, of

which the chamber F is the inlet chamber and the chamber F is theexhaust chamber. The inlet chamber F is provided, in its side wall, witha port. a at all times in register e H connectedby a pipe e source ofmotive agent H" being provided with with a supply i H with a suit bsupply, the valve a suitable valve H of the motive agent to the pipe H.Each of the inlet chambers F is also provided with an admission port bada ted to alternately register with ports 0 an 0 leading to the outerends of the cylinders A,'A or A A so as to alternately admit motiveagent from to the corresponding cylin- A In each of the 'ports 0 and cis arranged a check valve I to prevent accidental back firing. Theexhaust chamber F in each valve plug F is provided in its side wall,with two portsd and (1 adapted to register alternately with exhaustports e and 6 leading from the cylinders A and A or A and A The bottomof each chamber F connects with an exhaust pipe H for carryi off theexhaust to a suitable place of disc arge, the ipe H containing a valve 4connected with the valve H so that both valves H and H can be opened,and closed simultaneously by the operator. Each of the cylinders A, Aand A A is provided with a sparkingl plug J the chamber F or otherdevice for igniting the c arge in the outer end of the correspondingcylinder.

The operation is as follows: When the several part-s are in the positionas illustrated in Figs. 1, 2, 3, 4 and 5, then the valve plug F of thevalve F for the cylinders A and A connects, by'its ort b, with the port0 opening into the cylin er A, while the port 0 for the cylinder A iscut off. The cylinder A, however, is connected by the port 0 with theport d (see Fig. 5) opening into for controlling the flowthe exhaustchamber Ft. Now, the motive agent entering the chamber F of the valvenitin F for the cylinders A and A passes into the cylinder A, to beignited therein by-the igdevice J so as to ive an impulse to therpistonB in the cylin ex A to rotate the shaft E; At the same time the pistonBin the cylinder A is on the return stroke, so

that the gases of the previous explosion pass byway ofthe ports a and dinto the chamber F and through the pi e H -to a suitable place ofdischarge. Whi e this takes place inithe cylinders A and A, the'valve Ffor the cylinders A and A is about to connect ."with the cylinder ports,to'allow gas to pass into one cylinder, while the products of combustionfrom the previous explosion in'the other'cylinder are discharged as soonas the piston-is on'itsreturn stroke. It is'underjstood that when thepistons B in the cylinderssA andA are at or near the ends of -:"their.strokes, then} the pistons in the cylin-' contained therein.

' consequently {der's'fA and A are inmiddle position, or

is ignited, as the c eck valve I will close and prevent back firingthrough the ports a and into the chamber F of the with the shaft havicranks being. arrange at right angles to in the cylinders,r0dsconnecting'the p and thecranks, the 'rods'connectingt e'l.pis+

tons of each pair with oppositelyprojecting' valve plug I It is' furtherunderstood that the charge, passing into a cylinder may have beenpreviously compressed by a suitable pump ,or jo'ther means,so that,further compression'in the cylinder previous to igniting the charge'isnot necessary. I

Having thus described'my nvention, I

claim as new and desire to secure byLetters Patent:-' g I I In anexplosionv engine, "the comb nation, four cranks, said each other, oftwo pair of cylinders,- pistons cranks, a, controlling, valve forcontrolling the admission and'exhau's't' for each 'pair' j'o'fcylinders, said valveco'mprising a valve plu provided; with an inletchamber conne'te with thegas supply, anda port'fadapted to registeralternately with the admission ports forthe cylinders, said plug alsohaving anistons exhaust chamber connected'with an exhaust,

and havin ports adapted to alternately connectwith t e exhaust ports forthe cylinders, and a check valve in eachlof the, admission ports for-thesaidflcylinders'.

In testimony whereof -I have signed my name to this specification in thepresence of two subscribing witnesses.

' Go'rTLIEB- KELLER. Witnesses:

F. HANAroRD, I EVERARD B. MARSHALL.

